When a little green frog hops into Little Quack's pond - the other ducklings are not at all sure if they should make friends with him - after all he sounds funny, he's green and he's not at all fluffy. But Little Quack wants to be frog's friend and soon persuades his brothers and sisters that hopping, splashing and jumping are all fun things to do - so Little Ribbit is soon very at home in his new pond.